1. not recovered or restored to a useful condition
2. not made suitable for cultivation or habitation
Usage: often used of land

Examples

• The unreclaimed swampland stretched for miles.
• Large areas of unreclaimed desert remain uninhabitable.
• The city plans to develop the unreclaimed industrial site.
• Unreclaimed mining areas pose environmental hazards.
• The unreclaimed wasteland was home to various wildlife.
• Efforts to restore the unreclaimed wetlands began last year.